Description of algorithm
Full domain
American sector
European sector
Asian sector
GODAE regions
  Ice concntr, edge pos
  Contingency tables

Validation of sea ice concentration - GODAE regions

Bulletin date: 2017-04-20

Model: ARC MFC - TOPAZ

Data source: OSI SAF N.H. sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2017-04-24

Best estimate

Forecast

Arctic Deep Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 4 0 0 0
VODI 0 0 0 0 4 4 0 0
ODI 0 0 0 0 1 15 0 0
CDI 0 0 0 0 6 44 23 0
VCDI 0 0 0 0 39 343 6060 30359
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 2 0 0 0
OW 0 0 0 0 5 4 0 0
VODI 0 0 0 0 2 19 0 0
ODI 0 0 0 0 0 21 3 0
CDI 0 0 0 0 3 33 52 0
VCDI 0 0 0 0 42 329 6028 30359

Queen Elisabeth Islands:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 43 376 2714
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 43 376 2714

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 72 957 8953
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 72 957 8953

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 1 0 0 0
OW 0 0 0 0 9 0 0 0
VODI 0 0 0 0 20 2 0 0
ODI 0 0 0 0 208 31 0 0
CDI 0 0 0 0 185 79 0 0
VCDI 0 0 0 0 128 381 2263 2347
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 19 0 0 0
VODI 0 0 0 0 31 4 0 0
ODI 0 0 0 0 32 30 0 0
CDI 0 0 0 0 123 34 0 0
VCDI 0 0 0 0 346 425 2263 2347

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 3 2 0 0 0
ODI 0 0 0 10 10 0 0 0
CDI 0 0 0 5 50 10 18 11
VCDI 0 0 0 0 38 239 2792 4058
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 2 8 0 0 0
CDI 0 0 0 16 64 25 21 16
VCDI 0 0 0 0 28 224 2789 4053

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 12 5 0
CDI 0 0 0 0 2 132 58 0
VCDI 0 0 0 0 6 449 3296 1366
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 28 7 0
CDI 0 0 0 0 3 129 78 0
VCDI 0 0 0 0 5 436 3274 1366

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 27 51 20 0 0 0 0
OW 0 1 4 19 0 0 0 0
VODI 0 0 0 22 3 0 0 0
ODI 0 0 0 1 31 19 0 0
CDI 0 0 0 0 40 91 27 12
VCDI 0 0 0 0 38 1420 4363 142
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 28 52 24 0 0 0 0
OW 0 0 3 16 0 0 0 0
VODI 0 0 0 22 3 0 0 0
ODI 0 0 0 0 31 7 0 0
CDI 0 0 0 0 39 87 46 13
VCDI 0 0 0 0 39 1436 4344 141

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1357 5414 577 425 38 0 0 0
OW 0 6 70 237 36 4 0 0
VODI 0 0 4 278 135 14 0 0
ODI 0 0 0 58 201 58 0 0
CDI 0 0 0 0 126 317 12 0
VCDI 0 0 0 0 6 640 1318 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1357 5417 625 459 56 2 0 0
OW 0 3 24 205 40 12 0 0
VODI 0 0 2 228 118 22 0 0
ODI 0 0 0 89 186 76 0 0
CDI 0 0 0 17 123 302 32 0
VCDI 0 0 0 0 19 619 1298 0

Greenland Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1175 5843 763 202 16 0 0 0
OW 0 0 62 80 26 0 0 0
VODI 0 0 19 114 41 0 0 0
ODI 0 0 1 79 76 14 0 0
CDI 0 0 0 50 180 170 31 0
VCDI 0 0 0 0 29 383 2293 49
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1175 5741 664 210 41 0 0 0
OW 0 53 46 40 33 1 0 0
VODI 0 39 49 49 34 17 0 0
ODI 0 10 60 70 31 31 0 0
CDI 0 0 26 103 70 75 74 3
VCDI 0 0 0 53 159 443 2250 46

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6010 4317 914 526 115 27 0 0
OW 0 0 1 142 48 4 0 0
VODI 0 0 0 60 82 19 0 0
ODI 0 0 0 0 106 44 0 0
CDI 0 0 0 0 46 302 141 0
VCDI 0 0 0 0 0 15 69 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6010 4317 911 604 161 30 0 0
OW 0 0 4 90 67 27 0 0
VODI 0 0 0 34 92 85 1 0
ODI 0 0 0 0 57 51 29 0
CDI 0 0 0 0 20 206 178 0
VCDI 0 0 0 0 0 12 2 0

Baffin Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 4 3 0 0 0
OW 0 0 0 2 8 0 0 0
VODI 0 0 0 0 17 0 0 0
ODI 0 0 0 0 47 1 0 0
CDI 0 0 0 0 46 58 0 0
VCDI 0 0 0 0 50 883 3298 1386
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 5 5 0 0 0
OW 0 0 0 1 11 0 0 0
VODI 0 0 0 0 21 0 0 0
ODI 0 0 0 0 20 0 0 0
CDI 0 0 0 0 26 34 0 0
VCDI 0 0 0 0 88 908 3298 1386

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 7 13 0 0
CDI 0 0 0 0 11 121 25 0
VCDI 0 0 0 0 20 1291 6268 831
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 11 2 0
CDI 0 0 0 0 15 118 28 0
VCDI 0 0 0 0 23 1296 6263 831

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4650 7093 1771 1432 32 0 0 0
OW 0 2 47 332 116 0 0 0
VODI 0 0 0 157 421 18 0 0
ODI 0 0 0 1 434 305 15 0
CDI 0 0 0 0 130 1733 161 0
VCDI 0 0 0 0 75 798 486 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4650 7095 1818 1680 105 5 0 0
OW 0 0 0 195 192 20 0 0
VODI 0 0 0 47 483 137 16 0
ODI 0 0 0 0 188 381 104 0
CDI 0 0 0 0 136 1038 121 0
VCDI 0 0 0 0 104 1273 421 0


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